因為這篇文章不介紹Redis
叢集的搭建,這裡我們假設已經有了一個Redis 的叢集環境,我們專案中需要調整以下幾個部分
修改組態參數,叢集的節點和密碼配置;
#確保引入的Jedis
版本支援設定密碼,spring-data-redis
1.8 以上,SpringBoot
1.5 以上才支援設定密碼;
注入RedisTemplate
;
編寫工具類別;
############### Redis 集群配置 ######################### spring.custome.redis.cluster.nodes=172.20.0.1:7001,172.20.0.2:7002,172.20.0.3:7003 spring.custome.redis.cluster.max-redirects=3 spring.custome.redis.cluster.max-active=500 spring.custome.redis.cluster.max-wait=-1 spring.custome.redis.cluster.max-idle=500 spring.custome.redis.cluster.min-idle=20 spring.custome.redis.cluster.timeout=3000 spring.custome.redis.cluster.password=redis.cluster.password
確保 SpringBoot的版本大於1.4.x 如果不是的話,採用如下配置,先排除SpringBoot
中舊版本Jedis
和spring-data-redis
,再依賴高版本的Jedis
和spring-data-redis
。
org.springframework.boot spring-boot-starter-data-redis redis.clients jedis org.springframework.data spring-data-redis redis.clients jedis 2.9.0 org.springframework.data spring-data-redis 1.8.0.RELEASE
RedisTemplate
注入RedisTemplate
我們需要三個元件,分別是JedisConnectionFactory
、RedisClusterConfiguration
、JedisPoolConfig
,以下是注入RedisTempalte
的程式碼。先根據配置建立JedisConnectFactory
同時需要設定RedisClusterConfiguration
、JedisPoolConfig
,最後將JedisConnectionFactory
傳回用於建立RedisTemplate
import com.fasterxml.jackson.annotation.JsonAutoDetect; import com.fasterxml.jackson.annotation.PropertyAccessor; import com.fasterxml.jackson.databind.ObjectMapper; import org.apache.commons.pool2.impl.GenericObjectPoolConfig; import org.springframework.beans.factory.annotation.Value; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Primary; import org.springframework.data.redis.connection.RedisClusterConfiguration; import org.springframework.data.redis.connection.RedisNode; import org.springframework.data.redis.connection.jedis.JedisClientConfiguration; import org.springframework.data.redis.connection.jedis.JedisConnectionFactory; import org.springframework.data.redis.core.RedisTemplate; import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer; import org.springframework.data.redis.serializer.StringRedisSerializer; import java.time.Duration; import java.util.ArrayList; import java.util.List; public class RedisClusterConfig { @Bean(name = "redisTemplate") @Primary public RedisTemplate redisClusterTemplate(@Value("${spring.custome.redis.cluster.nodes}") String host, @Value("${spring.custome.redis.cluster.password}") String password, @Value("${spring.custome.redis.cluster.timeout}") long timeout, @Value("${spring.custome.redis.cluster.max-redirects}") int maxRedirect, @Value("${spring.custome.redis.cluster.max-active}") int maxActive, @Value("${spring.custome.redis.cluster.max-wait}") int maxWait, @Value("${spring.custome.redis.cluster.max-idle}") int maxIdle, @Value("${spring.custome.redis.cluster.min-idle}") int minIdle) { JedisConnectionFactory connectionFactory = jedisClusterConnectionFactory(host, password, timeout, maxRedirect, maxActive, maxWait, maxIdle, minIdle); return createRedisClusterTemplate(connectionFactory); } private JedisConnectionFactory jedisClusterConnectionFactory(String host, String password, long timeout, int maxRedirect, int maxActive, int maxWait, int maxIdle, int minIdle) { RedisClusterConfiguration redisClusterConfiguration = new RedisClusterConfiguration(); List nodeList = new ArrayList(); String[] cNodes = host.split(","); //分割出集群节点 for (String node : cNodes) { String[] hp = node.split(":"); nodeList.add(new RedisNode(hp[0], Integer.parseInt(hp[1]))); } redisClusterConfiguration.setClusterNodes(nodeList); redisClusterConfiguration.setPassword(password); redisClusterConfiguration.setMaxRedirects(maxRedirect); // 连接池通用配置 GenericObjectPoolConfig genericObjectPoolConfig = new GenericObjectPoolConfig(); genericObjectPoolConfig.setMaxIdle(maxIdle); genericObjectPoolConfig.setMaxTotal(maxActive); genericObjectPoolConfig.setMinIdle(minIdle); genericObjectPoolConfig.setMaxWaitMillis(maxWait); genericObjectPoolConfig.setTestWhileIdle(true); genericObjectPoolConfig.setTimeBetweenEvictionRunsMillis(300000); JedisClientConfiguration.DefaultJedisClientConfigurationBuilder builder = (JedisClientConfiguration.DefaultJedisClientConfigurationBuilder) JedisClientConfiguration .builder(); builder.connectTimeout(Duration.ofSeconds(timeout)); builder.usePooling(); builder.poolConfig(genericObjectPoolConfig); JedisConnectionFactory connectionFactory = new JedisConnectionFactory(redisClusterConfiguration, builder.build()); // 连接池初始化 connectionFactory.afterPropertiesSet(); return connectionFactory; } private RedisTemplate createRedisClusterTemplate(JedisConnectionFactory redisConnectionFactory) { RedisTemplate redisTemplate = new RedisTemplate(); redisTemplate.setConnectionFactory(redisConnectionFactory); Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer(Object.class); ObjectMapper om = new ObjectMapper(); om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY); om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL); jackson2JsonRedisSerializer.setObjectMapper(om); StringRedisSerializer stringRedisSerializer = new StringRedisSerializer(); // key采用String的序列化方式 redisTemplate.setKeySerializer(stringRedisSerializer); // hash的key也采用String的序列化方式 redisTemplate.setHashKeySerializer(stringRedisSerializer); // value序列化方式采用jackson redisTemplate.setValueSerializer(jackson2JsonRedisSerializer); // hash的value序列化方式采用jackson redisTemplate.setHashValueSerializer(jackson2JsonRedisSerializer); redisTemplate.afterPropertiesSet(); return redisTemplate; } }
其實到這裡基本上已經完成了,我們可以看到SpringBoot
專案存取Redis
叢集還是比較簡單的,而且如果之前單機環境就是採用RedisTemplate
的話,現在也就不需要寫工具類,之前的操作依舊有效。
/** * 删除KEY * @param key * @return */ public boolean delete(String key) { try { return getTemplate().delete(key); } catch (Exception e) { log.error("redis hasKey() is error"); return false; } } /** * 普通缓存获取 * * @param key 键 * @return 值 */ public Object get(String key) { return key == null ? null : getTemplate().opsForValue().get(key); } /** * 普通缓存放入 * * @param key 键 * @param value 值 * @return true成功 false失败 */ public boolean set(String key, Object value) { try { getTemplate().opsForValue().set(key, value); return true; } catch (Exception e) { log.error("redis set() is error"); return false; } } /** * 普通缓存放入并设置时间 * * @param key 键 * @param value 值 * @param time 时间(秒) time要大于0 如果time小于等于0 将设置无限期 * @return true成功 false 失败 */ public boolean set(String key, Object value, long time) { try { if (time > 0) { getTemplate().opsForValue().set(key, value, time, TimeUnit.SECONDS); } else { set(key, value); } return true; } catch (Exception e) { log.error("redis set() is error"); return false; } } /** * 计数器 * * @param key 键 * @return 值 */ public Long incr(String key) { return getTemplate().opsForValue().increment(key); } public Long incrBy(String key, long step) { return getTemplate().opsForValue().increment(key, step); } /** * HashGet * * @param key 键 不能为null * @param item 项 不能为null * @return 值 */ public Object hget(String key, String item) { return getTemplate().opsForHash().get(key, item); } /** * 获取hashKey对应的所有键值 * * @param key 键 * @return 对应的多个键值 */ public Map hmget(String key) { return getTemplate().opsForHash().entries(key); } /** * 获取hashKey对应的批量键值 * @param key * @param values * @return */ public List<Object> hmget(String key, List values) { return getTemplate().opsForHash().multiGet(key, values); }
以上是SpringBoot專案如何接入Redis集群的詳細內容。更多資訊請關注PHP中文網其他相關文章!